What is the purpose of door trim molding?

The purpose of door trim molding is to finish the look of a door. It can also help update an older door. Functionally, door trim molding conceals the gaps between the jamb and the rough opening.

The tools required to create door trim molding include a miter saw, air hose and compressor, brad nail gun, coping saw and combination square. A utility knife is also useful for marking the wood or cutting off excess materials. The materials needed to create the molding include trim, molding, shims and glue. For safety, it is important to have a dust mask, googles and hearing protection when cutting the molding with the miter saw.